Question

which is greater 8.0 or 0.8 explain

Answer 1

So,

Convert each of the decimals into fraction form, for example.
$8.0 --> \frac{8}{1} \ or\ \frac{80}{10}$
$0.8 --> \frac{8}{10}$

Obviously, then, 80 is greater than 8, so 8.0 is greater.
8.0 > 0.8

Answer 2

8.0 is a whole number = 8

0.8 is a fraction = 8/10

The fraction 8/10 is only part of a whole number.

Therefore  8.0 > 0.8

Hope this helps, :)